Kim, St. Raphael's in Charlottenburg Twp., Glengarry Co. was in existence although I don't believe that records are available from this time, St. Regis on Cornwall Island was founded in about 1762 (I have their BMD records from 1784 to 1830), St Joseph of Soulanges in Las Cedras, Soulanges Co., QC was founded in 1752 I have marriage records for this period and there are precious few non-French names. St. Regis is your best bet. I don't believe that there were any other Catholic churches active during your time period. Pete